I'm sure settling the matter of whether Diane and Susan are sisters will be as simple as asking Mr. Verres and will involve no additional complications whatsoever.
It hasn't been explored much yet, but Raven's feelings of guilt over not being able to help fight in past wars is a significant part of his character, and I'm looking forward to being able to address it in greater detail.
This storyline is concluding Monday (and surely not on any sort of dramatic note), after which the next Q&A will begin a week later. The reason for the gap is because I want the Q&A and written in full before it begins, along with as much EGS:NP as I can manage as part of my evil scheme to have everything written in advance going forward.
Seriously, complicated drawings can cause delays, but writing? I can't even start the drawing if that's not done.